External BEC REC-B6X 6 Ampere included 5.1V Two-way Step-down voltage

Using linear design, input power: 2 cell Li-ion or Li-poly battery, features no interference to receiver.
Some servos such as Futaba servo models 9241.9251.9253.9254.9255.9256, and other digital servos not capable of handling 6V. Please connect a 5.1V Step-Down Voltage Regulator inline between the Gyro and the rudder servo. If you are using a servo that can accept 6V input, the regulator is not required.
Features power switch and voltage indicating light for battery status, to remind users to avoid over discharge the receiver's battery and out of control caused by low voltage.
Input voltage: DC 7.4V 2CELL Lithium battery
Output voltage: DC 5.8V
Max. continuous current: 6A
Size: 60x34x15mm
Weight: 31g(including wire set)